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Expired Canadian patentCanada

Coated article

CA 2055941 C · Owner: Sermatech International, Inc. · Inventors: Mosser, Mark F.; Mcmordie, Bruce G.; Eddinger, Kevin B.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A coated article (10) and method of making the same is disclosed wherein the coated article (10) includes a substrate (12) consisting essentially of titanium or titanium alloy and an outer coating (14) of thermoplastic resin for protecting the substrate from chemical degradation and maintaining stability during exposure to temperatures of at least up to 260°C. An adhesion primer layer (16) is disposed between the substrate (12) and the outer coating (14). The adhesion primer layer (16) includes an inorganic binder matrix for increasing adhesion to the titanium and titanium alloys. The primer layer (16) further includes a thermoplastic resin in particulate form for increasing adhesion to the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed November 21, 1991 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 21, 1991
GrantedJuly 23, 2002
Term endedNovember 21, 2011
Patent numberCA 2055941 C
Classification (IPC)B32B15/08 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 21, 1991Patent grantedJuly 23, 2002Term endedNov 21, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.